Vulnerability Name:

CVE-2021-23727 (CCN-216459)

Assigned:2021-12-29
Published:2021-12-29
Updated:2022-06-14
Summary:This affects the package celery before 5.2.2. It by default trusts the messages and metadata stored in backends (result stores). When reading task metadata from the backend, the data is deserialized. Given that an attacker can gain access to, or somehow manipulate the metadata within a celery backend, they could trigger a stored command injection vulnerability and potentially gain further access to the system.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.6 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.0 Medium (CVSS v2 Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.1 High (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-77
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-23727

Source: XF
Type: UNKNOWN
celery-cve202123727-command-exec(216459)

Source: CCN
Type: celery GIT Repository
celery

Source: MISC
Type: Broken Link, Release Notes, Third Party Advisory
https://github.com/celery/celery/blob/master/Changelog.rst%23522

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2022-1dae017601

Source: CCN
Type: SNYK-PYTHON-CELERY-2314953
Stored Command Injection

Source: MISC
Type: Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-PYTHON-CELERY-2314953

Source: CCN
Type: IBM Security Bulletin 6562401 (Spectrum Protect Plus Container Backup and Restore)
Vulnerabilities in Celery, Golang Go, and Python affect IBM Spectrum Protect Plus Container Backup and Restore for Kubernetes and Red Hat OpenShift

Source: CCN
Type: IBM Security Bulletin 6981595 (Qradar Advisor)
Celery as used by IBM QRadar Advisor With Watson App is vulnerable to arbitrary command execution (CVE-2021-23727)

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-23727

Vulnerable Configuration:Configuration 1:
  • cpe:/a:celeryproject:celery:*:*:*:*:*:python:*:* (Version < 5.2.2)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • OR cpe:/a:fedoraproject:extra_packages_for_enterprise_linux:7.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:celeryproject:celery:5.2.1:*:*:*:*:python:*:*

    • * Denotes that component is vulnerable
    BACK
    celeryproject celery *
    fedoraproject fedora 35
    fedoraproject extra packages for enterprise linux 7.0
    celeryproject celery 5.2.1